diff options
Diffstat (limited to 'src/gui/kernel/qevent.cpp')
| -rw-r--r-- | src/gui/kernel/qevent.cpp | 128 |
1 files changed, 98 insertions, 30 deletions
diff --git a/src/gui/kernel/qevent.cpp b/src/gui/kernel/qevent.cpp index a3d39f13b2..19220b5492 100644 --- a/src/gui/kernel/qevent.cpp +++ b/src/gui/kernel/qevent.cpp @@ -1,31 +1,37 @@ /**************************************************************************** ** -** Copyright (C) 2015 The Qt Company Ltd. -** Contact: http://www.qt.io/licensing/ +** Copyright (C) 2016 The Qt Company Ltd. +** Contact: https://www.qt.io/licensing/ ** ** This file is part of the QtGui module of the Qt Toolkit. ** -** $QT_BEGIN_LICENSE:LGPL21$ +** $QT_BEGIN_LICENSE:LGPL$ ** Commercial License Usage ** Licensees holding valid commercial Qt licenses may use this file in ** accordance with the commercial license agreement provided with the ** Software or, alternatively, in accordance with the terms contained in ** a written agreement between you and The Qt Company. For licensing terms -** and conditions see http://www.qt.io/terms-conditions. For further -** information use the contact form at http://www.qt.io/contact-us. +** and conditions see https://www.qt.io/terms-conditions. For further +** information use the contact form at https://www.qt.io/contact-us. ** ** GNU Lesser General Public License Usage ** Alternatively, this file may be used under the terms of the GNU Lesser -** General Public License version 2.1 or version 3 as published by the Free -** Software Foundation and appearing in the file LICENSE.LGPLv21 and -** LICENSE.LGPLv3 included in the packaging of this file. Please review the -** following information to ensure the GNU Lesser General Public License -** requirements will be met: https://www.gnu.org/licenses/lgpl.html and -** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. +** General Public License version 3 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL3 included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 3 requirements +** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. ** -** As a special exception, The Qt Company gives you certain additional -** rights. These rights are described in The Qt Company LGPL Exception -** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 2.0 or (at your option) the GNU General +** Public license version 3 or any later version approved by the KDE Free +** Qt Foundation. The licenses are as published by the Free Software +** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 +** included in the packaging of this file. Please review the following +** information to ensure the GNU General Public License requirements will +** be met: https://www.gnu.org/licenses/gpl-2.0.html and +** https://www.gnu.org/licenses/gpl-3.0.html. ** ** $QT_END_LICENSE$ ** @@ -37,6 +43,7 @@ #include "qpa/qplatformintegration.h" #include "qpa/qplatformdrag.h" #include "private/qevent_p.h" +#include "qfile.h" #include "qmetaobject.h" #include "qmimedata.h" #include "private/qdnd_p.h" @@ -695,6 +702,31 @@ QHoverEvent::~QHoverEvent() */ /*! + \fn bool QWheelEvent::inverted() const + \since 5.7 + + Returns whether the delta values delivered with the event are inverted. + + Normally, a vertical wheel will produce a QWheelEvent with positive delta + values if the top of the wheel is rotating away from the hand operating it. + Similarly, a horizontal wheel movement will produce a QWheelEvent with + positive delta values if the top of the wheel is moved to the left. + + However, on some platforms this is configurable, so that the same + operations described above will produce negative delta values (but with the + same magnitude). With the inverted property a wheel event consumer can + choose to always follow the direction of the wheel, regardless of the + system settings, but only for specific widgets. (One such use case could be + that the user is rotating the wheel in the same direction as a visual + Tumbler rotates. Another usecase is to make a slider handle follow the + direction of movement of fingers on a touchpad regardless of system + configuration.) + + \note Many platforms provide no such information. On such platforms + \l inverted always returns false. +*/ + +/*! \fn Qt::Orientation QWheelEvent::orientation() const \obsolete @@ -727,10 +759,8 @@ QWheelEvent::QWheelEvent(const QPointF &pos, int delta, Qt::MouseButtons buttons, Qt::KeyboardModifiers modifiers, Qt::Orientation orient) : QInputEvent(Wheel, modifiers), p(pos), qt4D(delta), qt4O(orient), mouseState(buttons), - ph(Qt::NoScrollPhase), src(Qt::MouseEventNotSynthesized) + ph(Qt::NoScrollPhase), src(Qt::MouseEventNotSynthesized), invertedScrolling(false) { - if (!QGuiApplicationPrivate::scrollNoPhaseAllowed) - ph = Qt::ScrollUpdate; g = QCursor::pos(); if (orient == Qt::Vertical) angleD = QPoint(0, delta); @@ -764,10 +794,8 @@ QWheelEvent::QWheelEvent(const QPointF &pos, const QPointF& globalPos, int delta Qt::MouseButtons buttons, Qt::KeyboardModifiers modifiers, Qt::Orientation orient) : QInputEvent(Wheel, modifiers), p(pos), g(globalPos), qt4D(delta), qt4O(orient), mouseState(buttons), - ph(Qt::NoScrollPhase), src(Qt::MouseEventNotSynthesized) + ph(Qt::NoScrollPhase), src(Qt::MouseEventNotSynthesized), invertedScrolling(false) { - if (!QGuiApplicationPrivate::scrollNoPhaseAllowed) - ph = Qt::ScrollUpdate; if (orient == Qt::Vertical) angleD = QPoint(0, delta); else @@ -803,11 +831,8 @@ QWheelEvent::QWheelEvent(const QPointF &pos, const QPointF& globalPos, Qt::MouseButtons buttons, Qt::KeyboardModifiers modifiers) : QInputEvent(Wheel, modifiers), p(pos), g(globalPos), pixelD(pixelDelta), angleD(angleDelta), qt4D(qt4Delta), qt4O(qt4Orientation), mouseState(buttons), ph(Qt::NoScrollPhase), - src(Qt::MouseEventNotSynthesized) -{ - if (!QGuiApplicationPrivate::scrollNoPhaseAllowed) - ph = Qt::ScrollUpdate; -} + src(Qt::MouseEventNotSynthesized), invertedScrolling(false) +{} /*! Constructs a wheel event object. @@ -837,15 +862,14 @@ QWheelEvent::QWheelEvent(const QPointF &pos, const QPointF& globalPos, Qt::MouseButtons buttons, Qt::KeyboardModifiers modifiers, Qt::ScrollPhase phase) : QInputEvent(Wheel, modifiers), p(pos), g(globalPos), pixelD(pixelDelta), angleD(angleDelta), qt4D(qt4Delta), qt4O(qt4Orientation), mouseState(buttons), ph(phase), - src(Qt::MouseEventNotSynthesized) + src(Qt::MouseEventNotSynthesized), invertedScrolling(false) {} /*! Constructs a wheel event object. - The \a pos provides the location of the mouse cursor - within the window. The position in global coordinates is specified - by \a globalPos. + The \a pos provides the location of the mouse cursor within the window. The + position in global coordinates is specified by \a globalPos. \a pixelDelta contains the scrolling distance in pixels on screen, while \a angleDelta contains the wheel rotation distance. \a pixelDelta is @@ -873,7 +897,49 @@ QWheelEvent::QWheelEvent(const QPointF &pos, const QPointF& globalPos, QPoint pixelDelta, QPoint angleDelta, int qt4Delta, Qt::Orientation qt4Orientation, Qt::MouseButtons buttons, Qt::KeyboardModifiers modifiers, Qt::ScrollPhase phase, Qt::MouseEventSource source) : QInputEvent(Wheel, modifiers), p(pos), g(globalPos), pixelD(pixelDelta), - angleD(angleDelta), qt4D(qt4Delta), qt4O(qt4Orientation), mouseState(buttons), ph(phase), src(source) + angleD(angleDelta), qt4D(qt4Delta), qt4O(qt4Orientation), mouseState(buttons), ph(phase), src(source), + invertedScrolling(false) +{} + +/*! + Constructs a wheel event object. + + The \a pos provides the location of the mouse cursor + within the window. The position in global coordinates is specified + by \a globalPos. + + \a pixelDelta contains the scrolling distance in pixels on screen, while + \a angleDelta contains the wheel rotation distance. \a pixelDelta is + optional and can be null. + + The mouse and keyboard states at the time of the event are specified by + \a buttons and \a modifiers. + + For backwards compatibility, the event can also hold monodirectional wheel + event data: \a qt4Delta specifies the rotation, and \a qt4Orientation the + direction. + + The scrolling phase of the event is specified by \a phase. + + If the wheel event comes from a physical mouse wheel, \a source is set to + Qt::MouseEventNotSynthesized. If it comes from a gesture detected by the + operating system, or from a non-mouse hardware device, such that \a + pixelDelta is directly related to finger movement, \a source is set to + Qt::MouseEventSynthesizedBySystem. If it comes from Qt, source would be set + to Qt::MouseEventSynthesizedByQt. + + If the system is configured to invert the delta values delivered with the + event (such as natural scrolling of the touchpad on OS X), \a inverted + should be \c true. Otherwise, \a inverted is \c false + + \sa posF(), globalPosF(), angleDelta(), pixelDelta(), phase() +*/ +QWheelEvent::QWheelEvent(const QPointF &pos, const QPointF& globalPos, + QPoint pixelDelta, QPoint angleDelta, int qt4Delta, Qt::Orientation qt4Orientation, + Qt::MouseButtons buttons, Qt::KeyboardModifiers modifiers, Qt::ScrollPhase phase, Qt::MouseEventSource source, bool inverted) + : QInputEvent(Wheel, modifiers), p(pos), g(globalPos), pixelD(pixelDelta), + angleD(angleDelta), qt4D(qt4Delta), qt4O(qt4Orientation), mouseState(buttons), ph(phase), src(source), + invertedScrolling(inverted) {} #endif // QT_NO_WHEELEVENT @@ -3977,9 +4043,11 @@ QDebug operator<<(QDebug dbg, const QEvent *e) QtDebugUtils::formatQEnum(dbg, static_cast<const QApplicationStateChangeEvent *>(e)->applicationState()); dbg << ')'; break; +# ifndef QT_NO_CONTEXTMENU case QEvent::ContextMenu: dbg << "QContextMenuEvent(" << static_cast<const QContextMenuEvent *>(e)->pos() << ')'; break; +# endif // !QT_NO_CONTEXTMENU # ifndef QT_NO_TABLETEVENT case QEvent::TabletEnterProximity: case QEvent::TabletLeaveProximity: |